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# bohan002 - a and constant wall thickness t a Calculate the...

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3 - 2 6 - 0 7 N a m e : EGM5533 Applied Elasticity IN TERM EXAM II In this exam, you may use only one 8.5x11” formula page. Note that explaining in words how you obtain answers counts for 50% of the credit. Please sign a pledge that you have not violated any of the university honesty provisions with regards to this exam. _____________________ 1. (35%) The bar below has length L, cross-sectional area A, and the axial force P is applied at point C, which is at a distance of 0.6L from the left (point A). Young’s modulus of the section AC is E, and of the section CB is 2E.

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Name: 2. (33%) Consider a square hollow cross-section with side length
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Unformatted text preview: a and constant wall thickness t a. Calculate the twist angle ( θ ) as a function of a, t and G. b. If the cross sectional material area A=4at=10 cm 2 is fixed (fixed weight), calculate the optimum thickness for minimum twist. c. Calculate also the shear stress as function of t for the fixed material area case. Name: 1. (32%) Answer the following questions a) What is the strain energy in a cantilever beam of length L, bending rigidity EI under an end load P? b) What is the physical meaning of the slope of the Prandtl stress function? c) How is Castigliano’s method useful as a shortcut? d) Write the condition for the neutral axis to be the x axis for a general cross section under general loading....
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bohan002 - a and constant wall thickness t a Calculate the...

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